What Causes Swollen Veins?

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Definition

Varicose veins are swollen, twisted, and sometimes painful veins that have filled with an abnormal collection of blood.

See also:

  • Varicose vein stripping
  • Varicose vein - noninvasive treatment
  • Venous insufficiency

Alternative Names

Varicosity; Varicosis


Causes, incidence, and risk factors

In normal veins, valves in the vein keep blood moving forward toward the heart. With varicose veins, the valves do not function properly, allowing blood to remain in the vein. Pooling of blood in a vein...

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